Katherine Knight and her two-year-old daughter, Hailey, are enjoying another day at the park.  "This is a place for me and her father to be with her and to play with her," said Knight.

Knight supervises her child, but says she's not surprised that young children are getting injured on the playground.  "That's a very active stage of life for a kid, so it makes since that they are running around more and crashing into things," said Knight.

A new study released by the CDC says monkey bars and swings were often the culprit when it came to  traumatic brain injuries (TBI) with children. The study also reveals that from 2001 to 2013, more than 21,000 people, 14 or younger, were treated for TBIs from the playground.

"That maybe due to unsafe equipment or to children playing in a more rigorous fashion, but it also maybe due to increased parental awareness to what an concussion is," said Dr. Eric Warren of Novant Health.

Dr. Warren says there are many symptoms of a concussion. "Headaches, dizziness, nausea, light or noise sensitivity,” said Dr. Warren.

If your child shows any symptoms of a concussion, Dr. Warren says have them checked out by a doctor. “Certainly if your child has a head injury, is acting different, or is reporting any symptoms consistent with a concussion, they should be checked out and I wouldn’t wait on that,” said Dr. Warren.

“One of the challenges in taking care of younger kids with concussions is that they don’t really verbalize their symptoms very well. They won’t always tell you ‘I have a headache or dizziness or nausea.’ They tend to complain of more vague symptoms, but you can look at school, that’s a great place to see if they were doing as well as they were before, to talk to their teachers, and look at their behavior,” said Dr. Warren.

Dr. Warren recommends making sure the playground equipment is age appropriate and safe for your child. Also, to keep an eye on your child. "There was a 2012 study that showed an increase in all injuries related to parents spending most of their time, looking at their cell phones,” said Dr. Warren. Dr. Warren also says make sure there is soft padding on the playground.

Dr. Warren stresses it's still important to make sure your child is active.

It’s something Knight plans to do saying, “let them be, let them explore, and do their thing, but also be there as a provider and as a guide when they do get hurt. You should be there to help them heal and recover."